... % for 300msCurrent crest ratio3:1ConnectionIEC320*4IEC320*6IEC320*3 andterminal blockBatteryTypeSealed, maintenance free, lead-acidQuantity3 pieces6 pieces8 piecesBack-up time(full load)5 ... and vice versaLED indicatorsStatusLoad level/battery level, battery , utility power, inverter, bypass, overload, faultAudible alarmBypass, on battery mode, battery low, overload, faultAcoustic noiseAt 1 ...